Micro stuttering and framerate drops at high FPS

affected graphics settings:
maxed out
HDR on, VSYNC on, G-SYNC is being used.
DLAA or DLSS any preset, native AA
Resolution: 4k 16:9

reproducible: yes
affects: framerate, playability
severity: high

description:
I believe that the micro stuttering issues are not fully solved as reported here and need further investigation.

framerate drops appear to be more severe and prone under certain conditions as reported in linked thread below.

And it seems that limiting framerate as per example does contribute to remediate it by far, whilst not solving the issue.

comparing my personal experience with other players in our playing party. playing the game in 4k resolution (high resolution textures installed) are affected, while lower resolutions such as QWHD are not affected or lots lesser.
This might explain a high rate of posts that report similar issues on otherwise decent configurations.

It is clear this game offers a lot of technical bells and whistles, and drivers might not be absolutely polished yet, and there are dozens of reasons for performance issues if not specific, yet there seems to be a common reason and as such I would like to classify it as a bug / regression.

Thank you for your time and consideration!

related references:
[1] this might be also a technically valid reason for the stuttering.

[2][Main Thread] Extreme FPS drops - June 2023 - #20 by WhskyTango-11683

[3]Micro stuttering and framerate drops at high FPS

technical information:

WindowsBuildLabEx                                       : 22621.1.amd64fre.ni_release.220506-1250
WindowsCurrentVersion                                   : 6.3
WindowsEditionId                                        : Professional
WindowsInstallationType                                 : Client
WindowsInstallDateFromRegistry                          : 04.06.2023 11:15:40
WindowsProductName                                      : Windows 10 Pro
WindowsRegisteredOrganization                           : 
WindowsRegisteredOwner                                  : admin
WindowsSystemRoot                                       : C:\Windows
WindowsVersion                                          : 2009
OSDisplayVersion                                        : 22H2
BiosCharacteristics                                     : {7, 11, 12, 15...}
BiosBIOSVersion                                         : {ALASKA - 1072009, P2.10, American Megatrends - 50013}
BiosBuildNumber                                         : 
BiosCaption                                             : P2.10
BiosCodeSet                                             : 
BiosCurrentLanguage                                     : 
BiosDescription                                         : P2.10
BiosEmbeddedControllerMajorVersion                      : 255
BiosEmbeddedControllerMinorVersion                      : 255
BiosFirmwareType                                        : Uefi
BiosIdentificationCode                                  : 
BiosInstallableLanguages                                : 
BiosInstallDate                                         : 
BiosLanguageEdition                                     : 
BiosListOfLanguages                                     : 
BiosManufacturer                                        : American Megatrends International, LLC.
BiosName                                                : P2.10
BiosOtherTargetOS                                       : 
BiosPrimaryBIOS                                         : True
BiosReleaseDate                                         : 25.10.2021 02:00:00
BiosSeralNumber                                         : To Be Filled By O.E.M.
BiosSMBIOSBIOSVersion                                   : P2.10
BiosSMBIOSMajorVersion                                  : 3
BiosSMBIOSMinorVersion                                  : 3
BiosSMBIOSPresent                                       : True
BiosSoftwareElementState                                : Running
BiosStatus                                              : OK
BiosSystemBiosMajorVersion                              : 5
BiosSystemBiosMinorVersion                              : 19
BiosTargetOperatingSystem                               : 0
BiosVersion                                             : ALASKA - 1072009
CsAdminPasswordStatus                                   : Unknown
CsAutomaticManagedPagefile                              : False
CsAutomaticResetBootOption                              : True
CsAutomaticResetCapability                              : True
CsBootOptionOnLimit                                     : 
CsBootOptionOnWatchDog                                  : 
CsBootROMSupported                                      : True
CsBootStatus                                            : {0, 0, 0, 0...}
CsBootupState                                           : Normal boot
CsChassisBootupState                                    : Safe
CsChassisSKUNumber                                      : To Be Filled By O.E.M.
CsCurrentTimeZone                                       : 120
CsDaylightInEffect                                      : True
CsDescription                                           : AT/AT COMPATIBLE
CsDomainRole                                            : StandaloneWorkstation
CsEnableDaylightSavingsTime                             : True
CsFrontPanelResetStatus                                 : Unknown
CsHypervisorPresent                                     : True
CsInfraredSupported                                     : False
CsInitialLoadInfo                                       : 
CsInstallDate                                           : 
CsKeyboardPasswordStatus                                : Unknown
CsLastLoadInfo                                          : 
CsManufacturer                                          : To Be Filled By O.E.M.
CsModel                                                 : Z590 Extreme
CsNetworkAdapters                                       : {Ethernet, Ethernet 2, Bluetooth Network Connection}
CsNetworkServerModeEnabled                              : True
CsNumberOfLogicalProcessors                             : 12
CsNumberOfProcessors                                    : 1
CsProcessors                                            : {11th Gen Intel(R) Core(TM) i5-11600K @ 3.90GHz}
CsOEMStringArray                                        : {To Be Filled By O.E.M.}
CsPartOfDomain                                          : False
CsPauseAfterReset                                       : -1
CsPCSystemType                                          : Desktop
CsPCSystemTypeEx                                        : Desktop
CsPowerManagementCapabilities                           : 
CsPowerManagementSupported                              : 
CsPowerOnPasswordStatus                                 : Unknown
CsPowerState                                            : Unknown
CsPowerSupplyState                                      : Safe
CsPrimaryOwnerContact                                   : 
CsPrimaryOwnerName                                      : admin
CsResetCapability                                       : Other
CsResetCount                                            : -1
CsResetLimit                                            : -1
CsRoles                                                 : {LM_Workstation, LM_Server, NT}
CsStatus                                                : OK
CsSupportContactDescription                             : 
CsSystemFamily                                          : To Be Filled By O.E.M.
CsSystemSKUNumber                                       : To Be Filled By O.E.M.
CsSystemType                                            : x64-based PC
CsThermalState                                          : Safe
CsTotalPhysicalMemory                                   : 68566994944
CsPhyicallyInstalledMemory                              : 67108864
CsWakeUpType                                            : PowerSwitch
OsName                                                  : Microsoft Windows 11 Pro
OsType                                                  : WINNT
OsOperatingSystemSKU                                    : 48
OsVersion                                               : 10.0.22621
OsCSDVersion                                            : 
OsBuildNumber                                           : 22621
OsHotFixes                                              : {KB5026446, KB5026446, KB5026446, KB5026446...}
OsBootDevice                                            : \Device\HarddiskVolume3
OsSystemDevice                                          : \Device\HarddiskVolume5
OsSystemDirectory                                       : C:\Windows\system32
OsSystemDrive                                           : C:
OsWindowsDirectory                                      : C:\Windows
OsCountryCode                                           : 1
OsCurrentTimeZone                                       : 120
OsLocaleID                                              : 0409
OsLocale                                                : en-US
OsLocalDateTime                                         : 04.06.2023 23:41:25
OsLastBootUpTime                                        : 04.06.2023 23:24:34
OsUptime                                                : 00:16:50.3610359
OsBuildType                                             : Multiprocessor Free
OsCodeSet                                               : 1252
OsDataExecutionPreventionAvailable                      : True
OsDataExecutionPrevention32BitApplications              : True
OsDataExecutionPreventionDrivers                        : True
OsDataExecutionPreventionSupportPolicy                  : OptIn
OsDebug                                                 : False
OsDistributed                                           : False
OsEncryptionLevel                                       : 256
OsForegroundApplicationBoost                            : Maximum
OsTotalVisibleMemorySize                                : 66959956
OsFreePhysicalMemory                                    : 60421120
OsTotalVirtualMemorySize                                : 76921428
OsFreeVirtualMemory                                     : 67756060
OsInUseVirtualMemory                                    : 9165368
OsTotalSwapSpaceSize                                    : 
OsSizeStoredInPagingFiles                               : 9961472
OsFreeSpaceInPagingFiles                                : 9961472
OsPagingFiles                                           : {E:\pagefile.sys}
OsHardwareAbstractionLayer                              : 10.0.22621.1413
OsInstallDate                                           : 04.06.2023 13:15:40
OsManufacturer                                          : Microsoft Corporation
OsMaxNumberOfProcesses                                  : 4294967295
OsMaxProcessMemorySize                                  : 137438953344
OsMuiLanguages                                          : {en-US}
OsNumberOfLicensedUsers                                 : 0
OsNumberOfProcesses                                     : 194
OsNumberOfUsers                                         : 2
OsOrganization                                          : 
OsArchitecture                                          : 64-bit
OsLanguage                                              : en-US
OsProductSuites                                         : {TerminalServicesSingleSession}
OsOtherTypeDescription                                  : 
OsPAEEnabled                                            : 
OsPortableOperatingSystem                               : False
OsPrimary                                               : True
OsProductType                                           : WorkStation
OsRegisteredUser                                        : admin
OsServicePackMajorVersion                               : 0
OsServicePackMinorVersion                               : 0
OsStatus                                                : OK
OsSuites                                                : {TerminalServices, TerminalServicesSingleSession}
OsServerLevel                                           : 
KeyboardLayout                                          : de-DE
TimeZone                                                : (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna
LogonServer                                             : \\DESKTOP-7BLSA58
PowerPlatformRole                                       : Desktop
HyperVisorPresent                                       : True
HyperVRequirementDataExecutionPreventionAvailable       : 
HyperVRequirementSecondLevelAddressTranslation          : 
HyperVRequirementVirtualizationFirmwareEnabled          : 
HyperVRequirementVMMonitorModeExtensions                : 
DeviceGuardSmartStatus                                  : Off
DeviceGuardRequiredSecurityProperties                   : {0}
DeviceGuardAvailableSecurityProperties                  : {BaseVirtualizationSupport, SecureBoot, DMAProtection, 
                                                          SecureMemoryOverwrite...}
DeviceGuardSecurityServicesConfigured                   : {HypervisorEnforcedCodeIntegrity}
DeviceGuardSecurityServicesRunning                      : {CredentialGuard, HypervisorEnforcedCodeIntegrity}
DeviceGuardCodeIntegrityPolicyEnforcementStatus         : EnforcementMode
DeviceGuardUserModeCodeIntegrityPolicyEnforcementStatus : AuditMode

dxdiag excerpt:

---------------
Display Devices
---------------
           Card name: NVIDIA GeForce RTX 3080 Ti
        Manufacturer: NVIDIA
           Chip type: NVIDIA GeForce RTX 3080 Ti
            DAC type: Integrated RAMDAC
         Device Type: Full Device (POST)
          Device Key: Enum\PCI\VEN_10DE&DEV_2208&SUBSYS_88071043&REV_A1
       Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER] 
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 44795 MB
    Dedicated Memory: 12100 MB
       Shared Memory: 32695 MB
        Current Mode: 3840 x 2160 (32 bit) (120Hz)
         HDR Support: Supported
    Display Topology: Internal
 Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020
     Color Primaries: Red(0.639646,0.330079), Green(0.299805,0.599610), Blue(0.150393,0.059568), White Point(0.312500,0.329098)
   Display Luminance: Min Luminance = 0.024900, Max Luminance = 3800.000000, MaxFullFrameLuminance = 3800.000000
        Monitor Name: Generic PnP Monitor
       Monitor Model: LG TV SSCR2
          Monitor Id: GSMC0C8
         Native Mode: 3840 x 2160(p) (60.000Hz)
         Output Type: HDMI
Monitor Capabilities: HDR Supported (BT2020RGB BT2020YCC Eotf2084Supported )
Display Pixel Format: DISPLAYCONFIG_PIXELFORMAT_NONGDI
      Advanced Color: AdvancedColorSupported AdvancedColorEnabled 
         Driver Name: C:\Windows\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_3c2bd4a1ec6d228e\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_3c2bd4a1ec6d228e\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_3c2bd4a1ec6d228e\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_3c2bd4a1ec6d228e\nvldumdx.dll
 Driver File Version: 31.00.0015.3598 (English)
      Driver Version: 31.0.15.3598
         DDI Version: 12
      Feature Levels: 12_2,12_1,12_0,11_1,11_0,10_1,10_0,9_3,9_2,9_1
        Driver Model: WDDM 3.1
 Hardware Scheduling: DriverSupportState:Stable Enabled:True 
         Displayable: Not Supported 
 Graphics Preemption: Pixel
  Compute Preemption: Dispatch
            Miracast: Not Supported
      Detachable GPU: No
 Hybrid Graphics GPU: Discrete
      Power P-states: Not Supported
      Virtualization: Paravirtualization 
          Block List: No Blocks
  Catalog Attributes: Universal:False Declarative:True 
   Driver Attributes: Final Retail
    Driver Date/Size: 24.05.2023 02:00:00, 773712 bytes
         WHQL Logo'd: Yes
     WHQL Date Stamp: Unknown
   Device Identifier: {D7B71E3E-6148-11CF-FD7D-08A80EC2D235}
           Vendor ID: 0x10DE
           Device ID: 0x2208
           SubSys ID: 0x88071043
         Revision ID: 0x00A1
  Driver Strong Name: oem22.inf:0f066de3b91c4385:Section070:31.0.15.3598:pci\ven_10de&dev_2208
      Rank Of Driver: 00CF2001